HAAT Calculator & Elevation Finder

Calculate elevation and height above average terrain (HAAT) using the FCC's API.

NAD83 Latitude:
- ' " *

NAD83 Longitude:
- ' " *

Radiation Center Height:
meters   *

- Above Mean Sea Level (RCAMSL)
- Above Ground Level (RCAGL)

Number of Radials:

Terrain Database:

Legacy FCC30 terrain is not available through the FCC API. Use the FCC HAAT Calculator instead.

Station Class for ERP Check: (optional)

Decimal Coordinates:
Latitude: 42.416500
Longitude: -122.860028

Site Elevation:
397.14 meters

Radiation Center Above Mean Sea Level (RCAMSL):
420 meters

Height Above Average Terrain:
-56 meters, based on 8 radials.
(rounded from -55.87 m)

HAAT Along Each Radial:

Azimuth HAAT
01.94
45-52.21
90-83.81
135-328.5
180-5.93
225-38.41
27032.06
31527.91